1120ME: Corporate Income Tax Return (Form 1120ME, Schedule A) (2024)
Maine · Maine Revenue Services · Used for tax years 2024
Form 1120ME is Maine’s 2024 corporate income tax return. It reports federal taxable income, Maine income adjustments, tax, payments, credits, and any amount due or overpayment. Schedule A reports sales, payroll, and property within Maine and everywhere and calculates the Maine sh
Who files this form
Form 1120ME is Maine’s corporate income tax return for tax year 2024. The supplied form does not state the full rules for which corporations must file.
Corporations and Maine corporate income tax return preparers subject to federal electronic filing requirements must file Form 1120ME electronically.
For Schedule A:
- Do not complete it if 100% of the business activity is attributable to Maine. Schedule C may still be required.
- All others must complete Schedule A, including amounts in columns A and B even when those amounts are zero.
What you'll need
The return must include a legible copy of the corporation’s federal return for the same tax period, such as federal Form 1120, a federal pro forma return, or a federal consolidated return.
Include these additional documents when applicable:
- Schedules 1S, 1A, C, and X.
- Form CR, including the affiliation schedule, if required. The combined-return checkbox directs you to attach Form CR.
- Other statements for the Maine income tax return.
- Form 1099ME, W-2G, or other supporting documentation for income tax withheld on line 7d.
- Form 2220ME for the penalty for underpayment of estimated tax on line 9.
Have the corporation’s identification and contact information available, along with the federal income figures, Maine modifications, payments, and credits requested on the return.
How to file
Electronic filing and payment
Corporations and preparers subject to federal electronic filing requirements must file Form 1120ME electronically. Taxpayers with a combined annual liability of $10,000 or more for all Maine taxes must pay all Maine taxes electronically.
Mailing addresses
If you are not enclosing a check, mail the return to:
Maine Revenue Services
P.O. Box 1064
Augusta, ME 04332-1064
If you are enclosing a check, make it payable to Treasurer, State of Maine and mail it with the return to:
Maine Revenue Services
P.O. Box 1065
Augusta, ME 04332-1065
Assemble the return
Submit documents in this order:
- Pages 1 through 3 of Form 1120ME.
- Schedules 1S, 1A, C, and X, if applicable.
- Form CR, if required, including the affiliation schedule.
- Other Maine income tax return statements.
- A copy of the federal return.
Complete the officer’s signature and date fields on page 3. The form directs you to pay the total due in full with the return, subject to electronic payment requirements.
Common mistakes
- Leaving out the federal return: A legible copy for the same tax period must accompany Form 1120ME.
- Leaving a required Schedule A blank or omitting it: The Maine apportionment factor will be set at 100%. Enter amounts in columns A and B, including zeros.
- Completing Schedule A when all business activity is attributable to Maine: The form says not to complete it in that situation.
- Using the wrong rounding on Schedule A: Round dollar amounts to whole numbers and the apportionment factor to six decimal places.
- Including excluded income in Schedule A total sales: Exclude income claimed as a deduction on Schedule 1S, lines 5, 12, 13, and 14. The form notes that other limitations also apply.
Questions people ask
Can I request relief from electronic filing and payment requirements?
Yes. If undue hardship prevents compliance, you may submit a written waiver request to the State Tax Assessor. Include the business name, address, account numbers, a detailed explanation of why electronic filing poses a significant hardship, and the requested waiver period. Mail it to Maine Revenue Services, Corporate Tax Unit, P.O. Box 9107, Augusta, ME 04332-9107.
Can I apply an overpayment to next year’s estimated tax?
Yes. Line 12 lets you designate the amount of the line 11 overpayment to credit to next year’s estimated tax and the amount to refund.
Can my refund be directly deposited?
The form provides for direct deposit to a checking account for refunds of $20,000 or less. Enter the routing and checking account numbers, and check the box if the refund will go to an account outside the United States.
Can my paid preparer discuss the return with Maine Revenue Services?
Yes. Check “Yes” in the Paid Preparer Authorization area and complete the requested information.